IAS 37 provides guidance on accounting for provisions, contingent liabilities, and contingent assets. It requires recognition of a provision if there is a present obligation from a past event, an outflow of resources is probable, and the amount can be reliably estimated. Provisions are measured at the best estimate of the expenditure required to settle the obligation. Contingent liabilities are not recognized but must be disclosed unless the possibility of an outflow is remote. Contingent assets are also not recognized but may be if income realization is virtually certain.